Corkscrew



FIG. 1 is a perspective view of the corkscrew showing my new design;

FIG. 2 is a left side view of the corkscrew of FIG. 1;

FIG. 3 is a front view of the corkscrew of FIG. 1;

FIG. 4 is a rear view of the corkscrew of FIG. 1;

FIG. 5 is a top plan view of the corkscrew of FIG. 1; and,

FIG. 6 is a bottom plan view of the corkscrew of FIG. 1. 

The ornamental design for a corkscrew, as shown. 